Well, Llywydd, the Chief Medical Officer for England has confirmed the 80 per cent figure this morning. The range is expected to be in the 50 to 80 per cent part of the spectrum and 80 per cent would be higher than the population in the province of China that has been most seriously affected, so these are realistic worst-case scenarios. And if the worst were to take place, then up to 80 per cent of the Welsh population would be affected as well, so that is the figure that planning is using through our chief medical officer and the emergency co-ordinating arrangements that we have. It's not a prediction, it's not what we think will happen; it is an assumption for planning purposes that that 80 per cent figure mentioned in Scotland, confirmed today in London, is the same figure that we are working to here in Wales.